Signs and symptoms include hematomas that appear as an induration at the vascular access site and which can result in hypotension, tachycardia, or a decrease in hemoglobin and hematocrit levels. Retroperitoneal bleeding presents as moderate to severe back or flank pain, hypotension, tachycardia, ecchymosis, abdominal distension, or a decrease in hemoglobin and hematocrit levels. Femoral pseudoaneurysm and arteriovenous fistula can present as a bruit at the access site, or they can be asymptomatic.